For heavy crude oil dehydration X20 The Alfa Laval X20, model OFSX 520T-11CEGPX, is a high capacity purifier designed for dehydration of crude oil, especially heavy crude oil with an API down to 11.5. The design is based on the robust nozzle-type centrifuge in order to withstand the demanding situations encountered in the oil producing industry. The machine is in compliance with the EC ATEX directive category 2, and therefore Zones 1 and 2. As an option, the machine can be operated under a positive pressure of 400 kPa, as it has an ASME-approved pressure casing. The X20 purifier is one machine in the X20 family, which also consists of machines for applications such as produced water de-oiling and tar sand dehydration. Applications The X20 purifier is designed to reduce the water and particle content down to 0.5% BS&W or lower in crude oil at a water cut of up to 30%. Using a centrifuge for this application is especially suitable for heavy crude oil (down to API 11.5). The compact design makes it especially useful for offshore processing, including at floating platforms where the sea heave may cause problems for conventional technology. X20 purifier complete with skid.

Standard design Separation takes place in the bowl, which is placed on a vertical spindle. An electric motor mounted vertically drives the spindle near the bottom via a flat belt. Circulating of lube oil ensures that the bearings are lubricated. An external pump maintains the necessary pressure. The centrifuge motor is designed for variable frequency drive. All metallic parts that come into contact with the process liquid are made of high-grade stainless steel. Liquid-wetted gaskets are made of fluorocarbon rubber. To recover energy from the discharged nozzle flow, the nozzles are placed in the...

Technical specifications Throughput capacity max. 190 m3/h (840 US gpm) 1) Water flow max. 60 m3/h (260 US gpm) Oil flow max. 190 m3/h (840 US gpm) Nozzle flow max. 30 m3/h (130 US gpm) Bowl volume 70 l Bowl speed 3,750 rpm Motor speed, synchronous. 50/60Hz 1,500/1,800 rpm Motor power installed 152 kW Centrifugal force inside bowl max. 6,480 g Starting time 5–8 mins Stopping time without brake 80 mins Stopping time with brake 6–7 mins Feed temperature range max. 110 °C (230 °F) 2) Feed inlet pressure required at inlet flange min. 100 kPa 3) Outlet pressure of oil at outlet flange 500 kPa 4) Outlet...

PCHS00014EN 0608 How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com Alfa Laval reserves the right to change specifications without prior notification.